Intelligent near-infrared blood vessel imaging automatic blood sampling instrument

Abstract

The present application relates to blood sampling instrument technical field, especially intelligent near-infrared blood vessel imaging automatic blood sampling instrument, its technical scheme includes positioning part, including fixedly installed in the soft pad of the top of the base, the top of the soft pad is fixedly installed with the positioning ring, the inner arc surface of the positioning ring is fixedly installed with the pressurized air bag, the inner arc surface of the pressurized air bag is fixedly installed with the contact air bag, the outer arc surface of the pressurized air bag is fixedly installed with the through pipe, the present application is inflated by filling gas into the pressurized air bag and makes it swell, the pressurized air bag and the extrusion contact air bag of arm, the gas in the contact air bag is entered telescopic air bag after being extruded, and the telescopic air bag is stretched out and makes the flow of gas at the through pipe of the pressurized air bag be cut off, so as to adapt to the patients with different arm thickness, avoid the insufficient compression of the pressurized air bag, the venous blood reflux cannot be effectively blocked, and the vein is difficult to fully swell, the blood vessel may still be thin and not obvious, and the blood sampling is influenced.

Description

Technical Field

[0001] This invention relates to the field of blood collection equipment technology, and more particularly to an intelligent near-infrared vascular imaging automated blood collection device. Background Technology

[0002] A blood collection device is a medical device used to collect human blood samples. Through specific technologies or mechanical structures, it achieves safe, efficient, and standardized blood collection, providing sample support for clinical diagnosis, disease monitoring, and health checkups. Blood collection devices use disposable consumables (such as blood collection needles and blood collection tubes), and some devices are designed with structures to prevent needle pricks and blood exposure, reducing the possibility of cross-infection between operators and patients.

[0003] The patent document with announcement number CN110403616B proposes a blood pressure and pulse meter, which is equipped with a rotating shell and a fixed shell. The subject presses a non-woven fabric into a groove, and then the rotating shell is snapped onto the surface of the fixed shell. The air bladder in the groove is inflated, and the blood pressure and pulse counting sensors inside the device are used to measure the subject's blood pressure and count the pulse. The air bladder is used to pressurize the vein, making it clearly exposed and facilitating blood collection. The addition of non-woven fabric also avoids cross-infection caused by multiple people using the same pressure band. Blood collection, blood pressure measurement and pulse counting are combined into one process, realizing full automation and reducing the workload of medical staff.

[0004] People's arms are of different sizes. If the same volume of gas is filled into the balloon, the balloon cannot effectively block the return of venous blood. The veins cannot expand fully, and the blood vessels may still be thin and inconspicuous, affecting the puncture and blood collection. Summary of the Invention

[0005] The purpose of this invention is to address the problem in the prior art where the airbag compression force is insufficient and cannot effectively block venous blood return, and to propose an intelligent near-infrared vascular imaging automated blood collection device.

[0006] The technical solution of the present invention: an intelligent near-infrared vascular imaging automated blood collection device, including a base, a vertical plate fixedly installed on the top of the base, and further comprising:

[0007] The positioning part includes a soft pad fixedly installed on the top of the base, a positioning ring fixedly installed on the top of the soft pad, a pressure airbag fixedly installed on the inner arc surface of the positioning ring, an abutment airbag fixedly installed on the inner arc surface of the pressure airbag, a through tube fixedly installed on the outer arc surface of the pressure airbag, and a sealing element provided between the abutment airbag and the through tube.

[0008] The blood collection unit includes a middle block that is slidably connected to the side of the upright plate, and a blood collection device is provided on the side of the middle block;

[0009] An inductive pressure ring is fixedly installed on the inner arc surface of the pressurized airbag and at the misalignment point with the contact airbag.

[0010] Optionally, the positioning ring adopts an arc-shaped structure, the contact airbag adopts a cylindrical structure design, and the bottom of the contact airbag contacts the human arm.

[0011] Optionally, the closure includes an air tube, which is fixedly installed on the inner wall of the positioning ring. One end of the air tube is connected to an abutment airbag, and the other end of the air tube is connected to a telescopic airbag.

[0012] Optionally, a press-type normally open valve is fixedly installed on the through pipe, one end of the telescopic airbag is fixedly installed inside the positioning ring, and the other end of the telescopic airbag is fixedly connected to the pressing part of the press-type normally open valve.

[0013] Optionally, the volume of the abutment airbag is larger than that of the telescopic airbag, and the normally open push-button valve has a built-in return spring.

[0014] Optionally, a hydraulic telescopic rod is fixedly installed at the bottom of the intermediate block, the bottom of the hydraulic telescopic rod is fixedly connected to the upright plate, and an electric telescopic rod is fixedly installed between the intermediate block and the blood collection device.

[0015] Optionally, a hydraulic injection pipe is fixedly installed on the top of the positioning ring. The hydraulic injection pipe is connected to the hydraulic telescopic rod through a hydraulic pipe. A hydraulic piston is slidably connected inside the hydraulic injection pipe. A straight rod is fixedly installed on the bottom of the hydraulic piston. The bottom of the straight rod is fixedly connected to the abutment airbag. The diameter of the hydraulic telescopic rod is the same as the diameter of the straight rod.

[0016] Optionally, a circular hole is provided on the pressurized airbag at the top of the airbag, the straight rod is inserted into the circular hole, the air tube passes through the straight rod, and a clearance groove for the air tube is provided on the inner wall of the electric telescopic rod near the straight rod.

[0017] Optionally, a vein imaging lamp is fixedly installed on the side of the upright plate, and the light emitted by the vein imaging lamp shines on the human arm.

[0018] Optionally, a light sterilizer is fixedly installed on the top of the intermediate block, the light sterilizer is inclined, and the end of the light sterilizer faces the end of the positioning ring.

[0019] Compared with the prior art, the present invention has the following beneficial technical effects:

[0020] This invention inflates a pressure cuff by filling it with gas. The pressure cuff is then compressed by the arm, causing the gas inside to enter a telescopic cuff. The telescopic cuff extends, causing a normally open, press-type valve to stop the flow of gas through the tube. This invention is suitable for patients with different arm sizes and avoids situations where insufficient pressure from the pressure cuff fails to effectively block venous blood return, or where veins cannot fully expand, leaving the blood vessels thin and inconspicuous, thus affecting puncture and blood collection.

[0021] Furthermore, as the pressure bladder expands and the contact bladder moves downward, the contact bladder pulls the straight rod, causing the hydraulic piston to move downward and drawing the hydraulic oil inside the hydraulic telescopic rod into the hydraulic injection pipe. This causes the hydraulic telescopic rod to contract, lowering the height of the blood collection device, thereby adjusting the height of the blood collection device so that it can be stably inserted into the human arm for blood collection. Attached Figure Description

[0022] Figure 1 A schematic diagram of the overall structure of the present invention is provided;

[0023] Figure 2 This is a schematic diagram of the cushion structure of the present invention;

[0024] Figure 3 This is a schematic front sectional view of the positioning ring structure of the present invention;

[0025] Figure 4 for Figure 3 Enlarged schematic diagram of the telescopic airbag structure in part A;

[0026] Figure 5 This is a schematic diagram of the blood collection device structure of the present invention;

[0027] Figure 6 This is a schematic diagram of the separated state of the intermediate block structure of the present invention.

[0028] Reference numerals: 1. Base; 2. Stand plate; 3. Vein imaging lamp; 4. Light sterilizer; 5. Positioning part; 51. Soft pad; 52. Positioning ring; 53. Pressure airbag; 54. Contact airbag; 55. Trachea; 56. Telescopic airbag; 57. Press-type normally open valve; 58. Through tube; 6. Blood collection part; 61. Intermediate block; 62. Electric telescopic rod; 63. Blood collection device; 64. Hydraulic telescopic rod; 65. Hydraulic injection tube; 66. Hydraulic piston; 67. Straight rod; 7. Inductive pressure ring. Detailed Implementation

[0029] The technical solution of the present invention will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0030] The components of the embodiments of the invention described and shown in the accompanying drawings can typically be arranged and designed in a variety of different configurations. Therefore, the following detailed description of the embodiments of the invention provided in the drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention.

[0031] Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0032] In the description of this invention, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing the invention and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0033] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0034] Example 1: This example proposes an intelligent near-infrared vascular imaging automated blood collection device, such as... Figure 1 As shown, the device includes a base 1, a vertical plate 2 fixedly mounted on the top of the base 1, and a vein imaging lamp 3 fixedly mounted on the side of the vertical plate 2. The vein imaging lamp 3 uses near-infrared light of a specific wavelength to irradiate the skin. Blood vessels absorb the light due to the presence of hemoglobin, while other tissues strongly scatter and weakly absorb the light. The near-infrared light reflected or scattered by the near-infrared imaging device is captured. The captured information is converted by photoelectric conversion and image processing to finally locate the specific position of the blood vessel and project it onto the corresponding area for clear imaging. This non-invasive detection quickly finds a vein suitable for blood collection. Based on the principle of optimizing vascular elasticity and endothelial function, multiple colors are used for imaging, and the optimal blood vessel is marked and the needle insertion point is located, which is then transmitted to the blood collection device.

[0035] In Example 5, a blood collection section 6 is provided on the side of the upright plate 2. The blood collection section 6 includes a middle block 61 slidably connected to the side of the upright plate 2, and a blood collection device 63 is provided on the side of the middle block 61. A light sterilizer 4 is fixedly installed on the top of the middle block 61. Sterilization is sprayed with a diameter of 5 cm around the blood collection point, and the sterilization amount is preset and precisely calculated. The blood collection device 63 consists of a blood collection needle, a needle holder, and a blood collection tube.

[0036] like Figure 2 and Figure 3 As shown, a positioning part 5 is provided on the top of the base 1. The positioning part 5 includes a soft pad 51 fixedly installed on the top of the base 1. A positioning ring 52 is fixedly installed on the top of the soft pad 51. A pressure airbag 53 is fixedly installed on the inner arc surface of the positioning ring 52. An abutment airbag 54 is fixedly installed on the inner arc surface of the pressure airbag 53. An inductive pressure ring 7 is fixedly installed on the inner arc surface of the pressure airbag 53 at the misalignment point with the abutment airbag 54.

[0037] By introducing gas into the inflation bag 53, the inductive inflation ring 7 moves toward the patient's arm, applying pressure to the patient's limb while simultaneously monitoring blood oxygen saturation and pulse.

[0038] like Figure 4 As shown, the positioning ring 52 adopts an arc-shaped structure, and the contact airbag 54 adopts a cylindrical structure design. The bottom of the contact airbag 54 contacts the human arm. A tube 58 is fixedly installed on the outer arc surface of the pressurized airbag 53. An air pump connected to the tube 58 is fixedly installed inside the base 1. A sealing component is provided between the contact airbag 54 and the tube 58. The sealing component includes an air tube 55. The air tube 55 is fixedly installed on the inner wall of the positioning ring 52. One end of the air tube 55 is connected to the contact airbag 54, and the other end of the air tube 55 is connected to a telescopic airbag 56.

[0039] A normally open, push-button valve 57 is fixedly installed on the pipe 58. One end of a telescopic airbag 56 is fixedly installed inside the positioning ring 52, and the other end of the telescopic airbag 56 is fixedly connected to the pressing part of the normally open, push-button valve 57. The normally open, push-button valve 57 is a normally open valve, and it closes when pressed.

[0040] The inflating airbag 53 pushes the contact airbag 54 toward the human arm. When the contact airbag 54 comes into contact with the human arm, it is squeezed by the airbag 53 and the arm. The gas inside the contact airbag 54 enters the telescopic airbag 56 through the air tube 55. The telescopic airbag 56 extends and squeezes the pressing part of the normally open press valve 57, thereby closing the tube 58 and stopping the air from flowing into the airbag 53, that is, stopping the inflation of the airbag 53.

[0041] People's arms are of different sizes. If the same volume of gas is filled into the balloon, the balloon cannot effectively block the return of venous blood. The veins cannot expand fully, and the blood vessels may still be thin and inconspicuous, affecting the puncture and blood collection.

[0042] In this embodiment, gas is injected into the pressure bladder 53 to make it expand. The pressure bladder 53 and the arm squeeze against the air bladder 54. After the air bladder 54 is squeezed, the gas inside it enters the telescopic air bladder 56. The telescopic air bladder 56 extends and the normally open press valve 57 stops the flow of gas at the tube 58. This adapts to patients with different arm sizes and avoids the situation where the pressure of the pressure bladder 53 is insufficient to effectively block venous blood return, the vein cannot expand fully, and the blood vessel may still be thin and inconspicuous, affecting puncture and blood collection.

[0043] Example 2, based on Example 1, proposes an intelligent near-infrared vascular imaging automated blood collection device, such as... Figure 5 As shown, a hydraulic telescopic rod 64 is fixedly installed at the bottom of the intermediate block 61, and the bottom of the hydraulic telescopic rod 64 is fixedly connected to the upright plate 2. An electric telescopic rod 62 is fixedly installed between the intermediate block 61 and the blood collection device 63. The height of the intermediate block 61 is changed by extending and retracting the hydraulic telescopic rod 64, and the blood collection device 63 is made to collect blood from the human arm by extending the electric telescopic rod 62.

[0044] like Figure 4 and Figure 6 As shown, a hydraulic injection pipe 65 is fixedly installed on the top of the positioning ring 52. The hydraulic injection pipe 65 is connected to the hydraulic telescopic rod 64 via a hydraulic pipe. A hydraulic piston 66 is slidably connected inside the hydraulic injection pipe 65. A straight rod 67 is fixedly installed on the bottom of the hydraulic piston 66. The bottom of the straight rod 67 is fixedly connected to the contact airbag 54. The diameter of the hydraulic telescopic rod 64 is the same as the diameter of the straight rod 67. When the pressurized airbag 53 expands, causing the contact airbag 54 to move downward, the contact airbag 54 pulls the straight rod 67, causing the hydraulic piston 66 to move. The hydraulic piston 66 moves downward to draw the hydraulic oil inside the hydraulic telescopic rod 64 into the hydraulic injection pipe 65, thereby causing the hydraulic telescopic rod 64 to contract. The hydraulic telescopic rod 64 causes the intermediate block 61 and the blood collection device 63 to move downward.

[0045] Since the diameter of the hydraulic telescopic rod 64 is the same as the diameter of the straight rod 67, the distance that the hydraulic telescopic rod 64 moves down is the same as the distance that the contact airbag 54 moves down, thus making the height of the blood collection device 63 match the thickness of the human arm.

[0046] In this embodiment, as the pressure bladder 53 expands and the contact bladder 54 moves downward, the contact bladder 54 pulls the straight rod 67, causing the hydraulic piston 66 to move downward and draw the hydraulic oil inside the hydraulic telescopic rod 64 into the hydraulic injection pipe 65. This causes the hydraulic telescopic rod 64 to contract and lower the height of the blood collection device 63, thereby adjusting the height of the blood collection device 63 so that it can be stably inserted into the human arm for blood collection.

[0047] The vein imaging lamp 3 illuminates the vein, revealing the needle insertion point. The light sterilizer 4 sprays disinfectant. The blood collection needle of the blood collection device 63 enters the needle insertion point to collect blood. After blood collection is completed, the needle is pulled out, and the induction pressure ring 7 applies pressure to stop the bleeding, thus ending the blood collection process.

[0048] The above specific embodiments are merely several optional embodiments of the present invention. Based on the technical solutions of the present invention and the relevant teachings of the above embodiments, those skilled in the art can make various alternative improvements and combinations to the above specific embodiments.

Claims

1. An intelligent near-infrared vascular imaging automated blood collection device, comprising a base (1), wherein a vertical plate (2) is fixedly installed on the top of the base (1), and further comprising: The positioning part (5) includes a soft pad (51) fixedly installed on the top of the base (1). A positioning ring (52) is fixedly installed on the top of the soft pad (51). A pressure airbag (53) is fixedly installed on the inner arc surface of the positioning ring (52). An abutment airbag (54) is fixedly installed on the inner arc surface of the pressure airbag (53). A through tube (58) is fixedly installed on the outer arc surface of the pressure airbag (53). A sealing member is provided between the abutment airbag (54) and the through tube (58). The blood collection unit (6) includes a middle block (61) slidably connected to the side of the upright plate (2), and a blood collection device (63) is provided on the side of the middle block (61). An inductive pressure ring (7) is fixedly installed on the inner arc surface of the pressurized airbag (53) and at the misalignment point with the contact airbag (54). The closure includes an air tube (55), which is fixedly installed on the inner wall of the positioning ring (52). One end of the air tube (55) is connected to the contact airbag (54), and the other end of the air tube (55) is connected to a telescopic airbag (56). A press-type normally open valve (57) is fixedly installed on the through pipe (58). One end of the telescopic airbag (56) is fixedly installed inside the positioning ring (52), and the other end of the telescopic airbag (56) is fixedly connected to the pressing part of the press-type normally open valve (57). The inflating airbag (53) pushes the contact airbag (54) toward the human arm. When the contact airbag (54) comes into contact with the human arm, it will be squeezed by the inflating airbag (53) and the arm. The gas inside the contact airbag (54) enters the telescopic airbag (56) through the air tube (55). The telescopic airbag (56) extends and squeezes the pressing part of the press-type normally open valve (57), and the closed tube (58) stops the air supply to the inflating airbag (53), that is, stops the inflating of the inflating airbag (53).

2. The intelligent near-infrared vascular imaging automated blood collection device according to claim 1, characterized in that: The positioning ring (52) adopts an arc-shaped structure, and the contact airbag (54) adopts a cylindrical structure design. The bottom of the contact airbag (54) is in contact with the human arm.

3. The intelligent near-infrared vascular imaging automated blood collection device according to claim 2, characterized in that: The volume of the abutment airbag (54) is larger than that of the telescopic airbag (56), and the normally open push-button valve (57) has a built-in return spring.

4. The intelligent near-infrared vascular imaging automated blood collection device according to claim 3, characterized in that: A hydraulic telescopic rod (64) is fixedly installed at the bottom of the intermediate block (61), and the bottom of the hydraulic telescopic rod (64) is fixedly connected to the upright plate (2). An electric telescopic rod (62) is fixedly installed between the intermediate block (61) and the blood collection device (63).

5. The intelligent near-infrared vascular imaging automated blood collection device according to claim 4, characterized in that: A hydraulic injection pipe (65) is fixedly installed on the top of the positioning ring (52). The hydraulic injection pipe (65) is connected to the hydraulic telescopic rod (64) through a hydraulic pipe. A hydraulic piston (66) is slidably connected inside the hydraulic injection pipe (65). A straight rod (67) is fixedly installed on the bottom of the hydraulic piston (66). The bottom of the straight rod (67) is fixedly connected to the contact airbag (54). The diameter of the hydraulic telescopic rod (64) is the same as the diameter of the straight rod (67).

6. The intelligent near-infrared vascular imaging automated blood collection device according to claim 5, characterized in that: A round hole is provided on the pressurized airbag (53) at the top of the contact airbag (54), the straight rod (67) is inserted into the round hole, the air tube (55) passes through the straight rod (67), and a clearance groove for the air tube (55) is provided on the inner wall of the electric telescopic rod (62) near the straight rod (67).

7. The intelligent near-infrared vascular imaging automated blood collection device according to claim 6, characterized in that: A vein imaging lamp (3) is fixedly installed on the side of the upright plate (2), and the light emitted by the vein imaging lamp (3) shines on the human arm.

8. The intelligent near-infrared vascular imaging automated blood collection device according to claim 7, characterized in that: A light sterilizer (4) is fixedly installed on the top of the intermediate block (61). The light sterilizer (4) is inclined and its end faces the end of the positioning ring (52).

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